A novel 6-butyl-3-[(4-chlorophenyl)diazenyl]-4-hydroxy-2H-pyrano[3,2-c] quinoline-2,5(6H)-dione)dye 2) was effectively synthesized. The structure of)dye 2) has been set up using its accurate spectral and elemental analysis statistics. X-ray diffraction (XRD) analysis exhibited that)dye 2) has a polycrystalline nature. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were utilized. Optical parameters, as well as absorption index of)dye 2), were calculated using diffused reflectance wavelength measurements range 200–2300 nm. The bandgap in optics was determined by applying the Kubelka–Munk theory. Two optical band gap values (2.57 and 2.33 eV) were obtained. The first value (2.57 eV) is responsible for the direct transition while the other value (2.33 eV) is responsible for the indirect bandgap. AC fields were primarily utilized to calculate and interpret both AC electrical conductivity, the dielectric constant, and the dielectric loss. Finally)dye 2) turns out to be efficiently material and may act as a novel solar cell window due to its high bandgap.

新型的6-丁基-3-[（4-氯苯基）二氮烯基] -4-羟基-2H-吡喃并[3,2-c]喹啉-2,5（6 H）-二酮）染料2）被有效地合成。染料2）的结构已使用其准确的光谱和元素分析统计数据进行了设置。X射线衍射（XRD）分析表明，染料2）具有多晶性质。利用扫描电子显微镜（SEM）和傅立叶变换红外光谱（FTIR）。使用扩散反射波长范围为200–2300 nm的波长来计算光学参数以及染料2）的吸收指数。光学中的带隙是通过应用Kubelka-Munk理论确定的。获得了两个光学带隙值（2.57和2.33 eV）。第一个值（2.57 eV）负责直接过渡，而另一个值（2.33 eV）负责间接带隙。交流场主要用于计算和解释交流电导率，介电常数和介电损耗。最终，染料2）证明是有效的材料，并且由于其高的带隙而可以用作新颖的太阳能电池窗口。